Wader Study Group List of Members 31 December 1980

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WADER STUDY I]ROUP LIST OF MEMBERS 31 DECEMBER1980 This list is arranged in several sections for administrative convenience and includes all paid-up membersto end 1980. Please inform the Administrative Secretaries, N. & J. Clark (address on inside front cover), of any errors or omissionswhich cc•e to your notice. Chanõessince list in Bulletin 30 indicatedby N (newmember) or C (changein address details). Britain and Ireland ADAMS,J. 15 OakwoodAvenue, Gateley, Cheadle, Cheshire, UK. ALKER,P.J. Stationhouse, Ladies Lane, Hindly, Wigan, Lancashire WN2 2QJ, UK. APPLETON,G.F. 18 Old Barn Road, Bournville, Birmingham B30 1PY, UK. ATKINSON,N.K. Tadorna, 18 Cairnwell Cres., Montrose, Angus DD10 9EY, UK. BAILLIE,S. Culterty Field Station, Newburgh, Ellon, Aberdeenshire, UK. BAINBRIDGE, MR & MRS I.P. 137 Denton Road, Denton Burn, Newcastle-upon-Tyne, UK. BALL,M.W. School of EnvironmentalScience, University of East Anglia, University Plain, Norwich NR4 7TJ, UK. N BARTON,Ms.J. 16 Heswall Avenue, Clock Face, St. Helens, Merseyside WA9 4DR, UK. BARTON,S. 30 Falstaff Way, Hartford, Huntingdon, Cambridgeshire, UK. BEYNON,T.G. HeadmastersHouse, Denstone College, Uttoxeter, Staffordshire•T14 5HN, UK. BIRCH,J. Kilnsea, 76 Ash Lane, Mancot, Clwyd, UK. C BOATES,J.S. University of Exeter, Hatherly Labs., Prince of Wales Road, Exeter, Devon EX4 4PS, UK. BofYrH,C. Ronas, 34 High Street, Kirkwall, Orkney, UK. BC•I)t•,G. 10 Hillary Avenue, Bispham, Blackpool, Lancashire, UK. BRANSON,DR.N.J.B.A. White Gates, Harlton, Cambridge CB3 7ET, UK. BRt•k•AN, P. 134 Tardaree Court, Shannon, Co. Clare, Ireland. BRIGGS,K. B. 26 Hazelmount Drive, Warton, Carnforth, Lancashire LA5 9HU, UK. BRITISH BIRDS c/o Dr. J.T.R. Sharrock, Fountains, Park Lane, Blunham, Bedford MK44 3NJ, UK. BRITISH MUSEUM (NATURALHISTORY• General Library, Cromwell Road, London SW7 5BD• UK. BROADLEY,B. J. 92 Hyndland Road, Glasgow G12 9PZ, UK. BROCKNAY,I. K. The Schoolhouse, Ardross, Alness, Ross-shire IV17 0XW, UK. BRCMBY,A. T. Agent's House, Brownsea Island, Poole Harbour, Dorset, UK. BBOWN,S.C. 108 Sc•nerfield Road, Bolehall, Tamworth, Staffordshire, UK. BRYANT,DR.D. H. Department of Biology, University of Stirling, Stirling, FK9 4LA, Scotland. BTO LIBRARY Beech Grove, Tring, Hertfordshire HP23 5NR, England, UK. C BI/RGESS,J.P. C. 26 Chapel Lane, Costock, Loughborough, LE12 6UY, UK. BLPXTON,DR.N.E. NCC, 42 Aird Tong, Isle of Lewis, Western Isles, Scotland. CABOT,DR. D. Rockfort House, Dalkey, Co. Dublin, Ireland. CAIIMAN,R. A. Osborne House, Rossall School, Fleetwood, Lancashire FY7 8JW, UK. N CARRIER,M. 35 Lowry Hill Road, Carlisle, Cumbria, UK. CARTER,C. 1 Middle Lane, Seaton, Hull, North Humberside HUll 5SE, UK. CAXL-/•Or .F.,P. 85 Larchcroft Road, Ipswich, Suffolk, UK. CAVANNAGH,B. M. The Corner House, Hollesley, Woodbridge, Suffolk, UK. CLAPHAM,DR. C. Department of Politics, University of Lancaster, Bailrigg, Lancaster LA1 4YF, UK. CLARK,H. 18 Vansittart Street, Wick, Caithness, Scotland. CLARK,MR. & MtkB. N.A. 16 Jeffrey's Way, Stone Gallows, Taunton, Sc•erset, UK. CLAYTON,D. 18 Barnard Grove, Hart Station, Hartlepool, Cleveland County TS24 9SY, UK. C COATES,J.T. 22 Bancyfelin, Carmarthen, Dyfed, UK. COKER,D.G. 95 West Hill Avenue, Epsom, Surrey, UK. COOKE,M.W. 10 Metchley Court, Harborne, Birmingham UK. COOPER,MISS R.W.H. 59 Wattleton Road, Beaconsfield, Bucks HP9 1RY, UK. COt•E,C. Copinsay Shore Station, Str•T•ess, Orkney, UK. CROSS,J.K. 62 Hulbert Road, Badhampton, Havant, Hants PO9 3TG, UK. R•HELIBRARIAN Culterty Field Station, Newburgh, Aberdeenshire AB4 0AA, UK. CUF•4INS,P.A. 10 WhitebeamAvenue, Clonsteagh, Dublin 14, Ireland. CURRIE,A. Graiseilean, Broadford, Isle of Skye IV49 9BQ, Scotland. N •ERT,DR.M.F. Vishabreck, Evie, Orkney KW17 2PF, Scotland. DA PRATO, DR. & MRS.E.S. 38 Carlaverock Grove, Tranent, East Lothian, UK. DARE,DR. P.J. Tan-yr-Allt, Trefriw, Gwynedd, UK. DAVIDSON, N. C. Department of Zoology (Science Labs), University of Durham, South Road, Durham DH1 3LE, UK. DAVIES ,M. R.S.P.B., S.W.England Office, 10 Richmond Road, Exeter, Devon, UK. DICK, DR. J. A. 2 Lyndale Close, Foyle Road, London SE3 7RG, UK. DICK,W. J.A. 125 Leathwaite Road, London SWll 6RW, UK. DOWN,E.H. Grey Plovers, Hendon Wood Lane, London NW7, UK. DUGAN ,DR.P.J. Department of Zoology, University of Durham, South Road, Durham DH1 3LE, UK. E.G.I. LIBRARY Zoology Department, South Parks Road, Oxford, UK. EADES ,R. 1 Westbury, Heswall, Wirral, Merseyside, UK. ELLIOT,R. D. Culterty Field Station, Newburgh, Ellon, Aberdeenshire AB4 0AA, UK. ELPHICK, D. 28 Consiton Drive, Holmes Chappel, Crewe, Cheshire CW4 7LA, UK. tR•4E%T,E. E. Beck House, Hornby Road, Caton, Lancaster LA2 9QR, UK. ETIiERIDGE, B. Hillview, Rafford ,Forres, Morayshire IV36 0RU, UK. EVANS',DR.P. R. Zoology Department, University of Durham, South Road, Durham DH1 3LE, UK. EVANS,R.D. 13 Piper Road, Kingston-upon-Thames, Surrey KT1 3EX, UK. F.AoC.E. Bird Populations Assessment Proj., Marford Mill, Rossett, Clwyd LL12 0HL, UK. FANSHAW,J. WelltownManor, Boscastle, Cornwall PL35 0DY, UK. FENTON,Jø 4 Broad Lang, Whalley, Blackburn, Lancs. BB6 9RU, UK. FERNS ,DR.P.N. Zoology Department, University College, P.O. Box 78, Cardiff CF1 1XL, UK. FINDLEY, P. W. J. Sandwich Bay B.O., Guilford Road, Sandwich Bay, Sandwich, Kent, UK. FLt•41%K•,D. J. 21Cranshaws Drive, Redding, Falkirk FK2 9UY, UK. FLETCHER, J. D. 4 Hawsworth Drive, Formby, Lancashire L37 7EZ, UK. FLEXCHF•,M. R. Block C, Hookrise South, Tolworth, Surbiton, Surrey, UK. FO•,G.W. Apricaria, 11Millgate, Knox Lane, Harrogate, N.Yorkshire HG1 3DD, UK. FORSYTH, I. Department of Extramural Studies, Queen's University, Belfast BT7 1•, U.K. FOX,A.D. TyMawr, Inyslas, Borth, Dyfed, UK. FRANCIS ,J .G. 43 Archway Street, Barnes, London SW13 0AS, UK. •ULT.E•R,R. J. BTO, Beech Grove, Tring, Hertfordshire HP23 5NR, UK. •TIRNESS, DR. R. W. Zoology Department, Glasgow University, Glasgow G12 8QQ, Scotland. -56-

GALBRAITH,H. 96 Neilston Road, Paisley, Renfrewshire, UK. GEORGE,M.J. Flat 7, St. James School, Georges Road, London N7, UK. GIBSON,I.P. Arcadia, The Glen, Howwood,Johnstone, Renfrewshire, UK. GIBSON,DR.J.A. ForemountHouse, Kilbarchan, Renfrewshire, PAl0 2E2, UK. GINN,H.B. Wildlife Advisory Branch, NCC, 19/20 Belgrave Square, London SW1X8PY, UK. GOODALL,R.N. 3 Kettleby View, St. Helens Park, Brigg, S. Humberside DN30 8UD, UK. GOODALL-COPESTAKE,P. 346 Telegram Road, Heswall, Wirral, Merseyside L60 6RW, UK. G00DYER,LoR. Department of Zoology, Science Labs., South Road, Durham DH1 3LE, UK. GOSS-CUSTARD•J.D. I.T.E., Furzebrook, War.eham,Dorset BH20 5AS, UK. GRANT,K,R. 41 Colville Road, East Cosham, Portsmouth, Hants, UK. GREEN,G.H. Windy Ridge, Little Cc•berton, Pershore, Worcestershire, UK. N GREENSTREET,S.P.R. Culterty Field Station, Newburgh, Ellon, Aberdeenshire AB4 0AA, UK. GREtlXrW00D,DR.J.J.D. Department of Biological Science, University of Dundee, Dundee, UK. GREENW00D,J.G. Science Department, Stanmills College, Belfast, UK. GROSSE,P.S. 42 Beechill Park East, Belfast BT8 4NX, UK. HALE,DR.W.G. Department of Biology, Liverpool Polytech, ByrcwaStreet, Liverpool L3 3AF, UK. HARDMAN,J.A. Redhill House, Redhill, Alcester, Warwickshire, UK. HARDY,DR.A.R. MAFF, Hookrise South, Tollworth, Surbiton, Surrey, UK. HASSALL,DR.M. School of Env. Sci., University of East Anglia, Norwich NR4 7JT, UK. HEADLAM,C. Dallachie, Fearn, Ross-shire IV20 1TN. UK. H}•N•,C.M. 42 Redhouse Road, Tettenhall, Wolverhampton,W.Midlands WV6 8ST, UK. HERBER,K.J. 22 Rusham Park Avenue, Egham, Surrey TW20 9NB, UK. HERBERT,D. Birds of Prey Department, London Zoo, Regents Park, London NW1 4RY, UK. HODSON,J.R. 15 High Green, Severn Stoke, Worcestershire, UK. HOLLAND,P.K. 43 Thornhill Road, Stockport, Cheshire SK4 3HC, UK. HOLMES,A.S. 198 Elgar Road, Reading, Berkshire, UK. C HOOK,J.D. 7 Lorraine Court, 53 The Avenue, Beckenham,Kent, UK. C HOW•RD,R.C. 92 Tintern Avenue, Westcliffe-on-Sea, Essex SS0 9QH, UK. •INSON,C.D. 20 Dundanion Court Blackrock, Cork, Ireland. HYDE,P.A. BTO, Beech Grove, Tring, Hertforshire HP23 5NR, UK. I.W.R.B. Wildfowl Trust, Slimbridge, Gloucestershire, UK. INNES,J. Balchrysie, By Kilconquhar, Fife, UK. INSLEY,H. 1 Minstead Close, Harestock, Winchester, Hants, UK. IRELAND,P.L. 33 Banbrook Close, Solihull, West Midlands B92 9NF, UK. IRVING,P.V. 88 Gillot Road, Edgbaston, Birmingham B16 0ES, UK. JACKSON,G.E. 245 Church Road, Astley, Tyldesley, Manchester M29 7ET, UK. JAMIESON,M. 39 Swans Ide Road, Liverpool L14 7N4, UK. JOHNSON,MR.& MRS. C.D.N. 23 Brockinton Road, Bodenham, Hereford, UK. JONES,A.R. & H.M. 6 Cottage Drive West, Gayton, Heswall, Wirral, Merseyside L60 8NU, UK. C KEW,J. 1 MaydayCottage, BuryRoad, Brandon, Suffolk, UK. C KNIGHT,P.J. A.R.C. '.•eat ResearchInst., Langford, Bristol BS18 7DY, UK. LA SOCIETEGUERNSEY c/o T.J. Bourgaize, Lillington, Grande Bovet, St. Peter Port, Guernsey, Channel Islands. L519xKR•,P. Mountain and Wildlife Ventures, MorecambeBay Centre, 34 Thornton Road, Mx)recambe,Lancashire LA4 5PE,UK. LESLIE,R. 9 Swainsea Drive, Pickering, N.Yorkshire, UK. C LESS•.T.q, Ms C.M. E.G.I., Zoology Department, South Parks Road, Oxford, UK. LIMt•XI•ANI,J. 10 Acacia Avenue, Saint Ives, Huntingdon, Cambridgeshire PE17 4TN, UK. C LLOYD,DR.C.S. 88 Haddington Road, Dublin 4, Ireland. MACGRt•GOR,H.M. 74 Ivy Field Road, Erdington, Birmingham, West Midlands, UK. MAINWOOD,A. 13 Ben Bhraggie Drive, Golspie, Sutherland, UK. MARCHANT,J.H. BTO, Beech Grove, Tring, Hertfordshire HP23 5NR, UK. MARRIS,R. 12 East Terrace, Budleigh Salterton, Devon EX9 6PG, UK. MARSH,R.W.H. 28 Manor Road, Slyne-With-Hest, Lancaster LA2 6LB, UK. MARTIN,M.W.A. 81 Dunkeld Road, Perth, UK. McANDREW,R.T. 103 Granville Avenue, Hartlepool, Cleveland TS26 8NA, UK. C MclMEEKING,J.M. The Whimbrels, Goverton, Bleasby, Nottingham NG14 7FN, UK. MEAD,C.J. 4 Beaconsfield Road, Tring, Hertfordshire, UK. MELVILLE, D.S. c/o 44 The Ridgeway, Tombridge, Kent, UK. MERNE,O.J. Department of Fish & Forest, Forest & Wildlife Service, 2 SudmontonPlace, Bray, Co.Wicklow, Ireland. MINTON,DR.C.D.T. 45 Bodenham Road, Hereford, UK. MOON,S. 28 Cefn Road, Cefncribwr, Bridgend, Mid-Glamorgan CF32 0BA, UK. N MOORE,DR.P.C.H.'Bramblings', Holland Close, Bickington, Nr. Barnstaple, N.Devon, UK. N MORAN,P.A. 23 Goodison Gardens, Erdington, Birmingham B24 0AQ, UK. MORGAN,P. Department of Zoology, National Museumof Wales, Cathays Park, Cardiff, UK. MORLEY,E. 59 Salisbury Street, Hull, N. Humberside, UK. N MOSER,M.E. Department of Zoology, University of Durham, South Road, DurhamDH1 3LE, UK. MOSS,DR.D. 36 Gorwell, Llanfairfechan, GwyneddLL33 0DU, UK. MOSS,M. 5 Grove Gardens, Frimley, Camberley, Surrey GU16 5JX, UK. C [•3DGE, Dr G.P. 24 Moy Road, Roatn, Cardiff, UK. MURREY,B.E. 75 Cocklade Lane, Hale, Near Liverpool, UK. MURTONSQUAD.LDR.P.G. 16 Hillview Close, Rowhedge, Colchester, Essex CO5 4HT, UK. NATURE CONSERVANCYCOUNCIL Librarian, Calthorpe l•ouse, Calthorpe Street, Banbury, Oxon 0X16 8EX, UK. NELSON,W. Lawsbrook, Shillingstone, Blandford, Dorset DTll 0TE, UK. NEWHAM,DR.J.A. 27 Gerald Road, Worthing, West Sussex BNll 5QQ, UK. C NICOLL,M. 2 William Street, Tayport, Fife, UK. NICHOLS,R. 186 Milton Street North, Northampton NN2 7DD, UK. NORMAN,DR.D. RowswoodCottage, Ridding Lane, Sutton Weaver, Runcorn, Cheshire WA7 6PF, UK. O'CONNOR,D.A. 9 The Village, Fenwick, Beal, Northumberland, UK. O'CONNOR,DR.R. BTO, Beech Grove, Tring, Hertfordshire HP23 5NR, UK. OKILL,J.D. East House, South Whiteness, Shetland, Scotland. OLD.A. Kalinka, 2 Flimby Brow, Flimby, Maryport, Cumbria CA15 8TD, UK. O'MAHONY,B. Kelvin, Well Road, Cork, Ireland. ORNITHOLOGYSt%/œION Soci•t• Jersiaise, 9 Pier P•ad, St. Helier, Jersey, Channel Islands. PARKINSON,J.N. 53 Werpe Park, Connah's Quay, Deeside, Clwyd, UK. PIt•XIKC•SKI,DR.M.W. & MRS.A.E. Department of Zoology, University of Durham, South Poad, Durham DH1 3LE, UK PONTING,E.D. 26 Fieldway, Berkhamsted: Hertfordshire, UK. N POWER,Ms.V.M. Departmentof Biology, L•.verpool Polytechnic, ByromStreet, Liverpool L3 3AF, UK. PRATER,A.J. R.S.P.B., Scan House, 4 Church Street, Shoreham-by-Sea, Sussex, UK. PRATLEY,P. 26 The Grove, Pott Row, Grimston, Kings Lynn, Norfolk, UK. -57-

PRA•,DR.N.H. Skoner, 7 Salcombe Crescent, Totten, Southampton, Hants SO4 3FQ, UK. PRESCOIT ,C. 45 Tuscan Road, Plumstead, London SE18 1SY, UK. PRICE, D. 8 Scattor View, Bridford, Exeter EX6 7JF, UK. PRINGLE, DR. S. 26 Morris Road, Lewes, Sussex BN7 2AT, UK. REYNOLDS,C.M. 50 Strouden Avenue, Bournemouth, Dorset BH8 9HX, UK. ROBERI• ,A.H.N. 110 Hawksworth Lane, Guiseley, Near Leeds, West Yorkshire LS20 8NR, UK. ROBERTS,MS .E.K. Marine Biological Assoc., The Laboratory, Citadell Hill, Plymouth PL1 2PB, UK. ROSE,H. 12 Birbeck Road, Bristol BS9 1BD, UK. RSPB Librarian, The Lodge, Sandy, Bedfordshire SG19 2DL, UK. RUSK ,DR.M. 18 Morven Road, Inverness IV2 4BU, Scotland. RYNN,MRS. S. 32 Eccleston Street, Wigan, Greater Manchester, UK. SCOTTISH ORNITHOLOGISTS CLUB Librarian, 21 Regent Terrace, Ediburgh •7 5BT, Scotland. N SELMAN,MS.J.M.A. Department of Biology, Liverpool Poly, Byrom Street, Liverpool L3 3AF, UK. SEVERN VALE R.G. c/o R.Bircher, 23 Bathleaze, Kings Stanley, Stonehouse, Gloucestershire, UK. s•m•DON, J. 4 Hertford Street, Barrow-in-Furness, Cumbria, UK. SITTERS ,H. P. Tanglewood, Plymbr idge Road, Roborough, Plymough, Devon, UK. SMALLMAN, MISS J.M.B. • Willow Road, Finchfield, Wolverhampton WV3 8AF, UK. SMALLSHIRE, D. 25 Caspian Way, Wheaton Aston, Stafford ST19 9PR, UK. SMITH, PROF.J. C. Department of Biology, Paisley College of Technology, High Street, Paisley, Renfrewshire, UK. C SPt•CE, I.M. 7 Ripon Avenue, Lowton, Warrington WA3 2JE, UK. SPENCER,R. BTO, Beech Grove, Tring, Hertfordshire HP23 5NR, UK. SPORNE,S .H. Horizon, hollies Close, Sway, Lymington, Hants, UK. SPURN OBSERVATORY Kilnsea, (Via Patrington), Hull, HU12 0UG, UK. STANLEY, DR. P. I. MAFF, Pest Infestation Control Lab., Hookrise South, Tolworth, Surbiton, Surrey, UK. STANYARD,D.J. Court Farm, Groeslon, Caernarvon, Gwynedd LL54 7UE, UK. S•,D.J. 'Saffron', Laurel Gardens, Locks Heath, Southampton, UK. STONE,D.A. (Brandon R.G. ) Overbury, Wolverton, Stratford-upon-Avon, Warwickshire, UK. SU•IERS ,DR. R.W. MAFF, Worplesdon Lab., Tangley Place, Worplesdon, Guildford, Surrey, UK. SUTCLIFFE, S. J. Eaton Cottaqe, Lydstep, Nr. Tenby, Dyfed, UK. C SUTHSRRIAND,W. J. E.G.I., Dept. of Zoology, South Parks Road, Oxford 0X1 3PS, UK. SWANN,R. 14 Drustans, Drumnadrochit, Inverness-shire, UK. SWINFS•,MR. & MRS.R. 72 Dunraven Drive, Derriford, Plymouth, Devon PL6 6AT, UK. SYMONDS,F. L. Weir House, Nidd Bank, Knaresborough, N.Yorkshire, UK. TALLOWIN, J. c/o Grassland Research Inst., Hurley, Maidenhead, Berkshire SL6 5LR, UK. TASKER,M. L. 17 Rubislaw Terrace, Aberdeen, Scotland. TATE, P. Half Acre, Rooks Hill, Rickmandsworth, Hertfordshire WD3 4HZ, UK. TAYLOR,N.W. The Skealing, Veryan Green, Truro, Cornwall TR2 5QQ, UK. TAYLOR, P.N. 20 Wardieburn Drive, Granton, Edinburgh, Scotland. TAYLOR,DR. R.C. 4 Berkeley Place, Camden Road, Bath, Avon BA1 5JH, UK. THICKEIT, L. A. Flat 33, Hallam Close, No. 64 Encliffe Vale Road, Sheffield S10 3EW, UK. THROWER,W. T. Fourwynds, Smallworth, Garboldisham, Diss, Norfolk IP22 2QW, UK. TOWNSHII•D, D. J. Department of Zoology, University of Durham, South Road, Durham, DH1 3LE, UK. 11IBBS,C. R. 24 Queen's Road, Lyndhurst, Hampshire, UK. RIK•hlER,B. S. Shinnel House, Tynron, Thornhill, Dumfriess-shire, DG3 4JT, UK. kmJ/{ER,DR.A.J.M. c/o Marine Science Labs., Menai Bridge, Anglesey, Gwynedd, UK. C WB_RNES,MS. J. Dunlossit House, Port Askaig, Isle of Islay, Argyll, Scotland. WATSON,DR. D .A. 12 Hill View Gardens, Liverpool L25 7XE, UK. WEBB,MRS .J. 2 Peasholm Cottages, Scarborough, Yorkshire, UK. WHITE,P.J. 51 Peldon Court, Sheen Road, Richmond-upon-Thames, Surrey TW9 1YT, UK. WHITITY_S,C. The Bungalow, 1 School Lane, East Keele, Spilsby, Lincs. UK. C WILKIE,A.O.M. Merton College, Oxford OX• 4JD, UK. WILKINSON, S. J. 43 Northover Road, Westbury on Tyne, Bristol, UK. WILLIAMS ,D. F. 175 Knollys Road, Streatham, London SW16 2JP, UK. WILSON,H. J. Tomdarragh, Roundwood, Co. Wicklow, Ireland. N WOOD,A.G. Department of Zoology, University of Durham, South Road, Durham DH1 3LE, UK. WODD,K. 2 Oak Drive, Halton, Lancaster, UK. YATES ,B.J. Liverpool Poly., (Biology Department), Byrom Street, Liverpool, UK. YOUNG,J.F. Waterside Mains, Keir, Thornhill, Dumfries, UK. Z•ILLO, B. 28 Brodie Road, Glasgow G21 3SB, UK.

Elsewhere in Europe

AKCJA BALTYCA Zespol organizacyjny, Siemioki, 88-325 Wlostowo, Poland. ALTERNURG,W. Van Sijsenplaats 2A, Groningen, Netherlands. ARBEITSKREISNATUR-UND UI•ELTSCULTZHARLINGERLAi• ESENS, c/o M.H. Knake, 2943 Esens-Nardsea, P.O.Box 1250, W.Gern•ny ARPPE,H. Kirkkoherrantie 5817, 00650 Helsinki 65, Finland. B•CKER,DR.P.H. Institut fur Vogelforschung, 'Vogelwarte Helgoland', 2940 Wilhelmshaven, Rusterseil, Germany. Bt•CUWE,M. Visserstraat 4, B-8172, Lampernisse-Diskmuide, Belgium. BEINT•V•,A.J. Willem de Zwygerlaan 15, 3941GA, Doorn, Netherlands. B•.•3NS,W. Preipoelstraat 38, B-2800, Mechelen, Belgium. BIE,S.DE. Kastelenlaan 117, 9301Vr Roden, Netherlands. BIOLOGISCHESTATION RIESELFELDER Coermuhle 133, D-4400 Munster, West Germany. BLCMQVIST,S. Kungsholms Strand 19(VI), 112 26 Stockholm, Sweden. BOERE,DR.G.C. Voorstraat 7, 4153 Ah Beesd, Netherlands. BREDERODE,Ms. N.E.van ¾echt-st•aat 103,8021 AWZwolle, Netherlands. BREIEHAGEN,T. Dept. oœ Animal Ecology, Zoological Museum,University of Bergen, N-5014 Bergen-U., Norway. BYRKJEDAL,I. Zoological Museum, University of Bergen, Museplass 3, N-5014 Bergen-U., Norway. CLAUSEN,L. Vinkelvej 13, 4800 Nykobing F, Denmark. CONNELL,S.A. c/oO.Z. Bluy, c/o Saclant, Via S. Bartolc•eo 400, 19026 La Spezia, Italy. CZAJKOWSKI,M. 2 Avenue du Mont, Beyhost, 01700 Miribel, France. D•.F.•/W,DRS.E.E. Electriciteitstraat 33/9, B-2800 Mechelen, Belgium. DE ROOS,DR.G.T.H. Dorpstraat 198, 8899 A P Vlieland, Netherlands. DIJK,A.J.Van Ootmandijk L, Uffelte 7512, Netherlands. DONGS•,M.Van Beethovenlaan 238, Tilburg, Netherlands. ENGEI/MOER,M. Beolumerstraat 49A, 9716 BC Groningen, Netherlands. ENS 8- Verlengade Frederikstraat 22A, Groningen, Netherlands. ENVIRO6•K•f AND CONSUMERPROTSC•ION SERVICE (R.GEISER), Co•nission of the European Cc•munities, Rue de la Loi 200, B-1049 Bruxelles, Belgium. EXO,K-M. D-4350 Recuinghausen, Eifelstrasse 27, West Germany. FERRE,X. Department Zoologia, (Vertebrats), Fac Blologis PSA Universitat, Barcelona-7, Spain. -58-

FILBRANDT,U. Lappstrasse 12, 3403 Gross Scheen, West Germany. FLINT,DR.D.E. Zoological Museum, Iterzen-Str 6, Moscow K-9, U.S.S.R. FLODIN,L.A. Jattekl Ivskgatan 3, S-50247 Boras, Sweden. FOLL•TAD,A. Ornitologisk Stasjon Vigra, Postboks 206, N-6001 Alesund, Norway. FORSBERG,M. Sinasuagen 33, 41668 Goteborg, Sweden. C FOURNIER,O. Ste-Foy, F-85150 La, La Mothe Achard, France GAME BIOLOGY STATION Kalo, DK8410, Ronde, Denmark. GELD,J.Van Der Dorpsstraat 96, 1534 NN, Oost-Knollendam, Netherlands. N GERRITS•,G.J. Degenestetstraat 4, 8023 BE, Zwolle, Netherlands. GLUTZVON BLOTZHEIMPROF.U.N. 6204 Sempach, "Eichho]dzi", Switzerland. GODDEFROY,J. Evert Van't Padstraat 6, B-8320 Brugge 4, Belgium. GR(i•tADZKA,J. Polska Akademia Nauk Instytut Zool., Stracja Ornithoyiczana, Gorki Wschodnie 14, 80-680 Gdansk 40, Poland. HANSEN,J.M. Skebjbyvej 31, 8240 Risskov, Denmark. HARENGER,M. Auf der Horst 14, D-4400 Munster, West Germany. HJORT,C. Hessle, Munkarp, S 24300 Hoor, Sweden. HOTKER,H. D-4520 Melle 8, Schiplge 110, West Germany. HULSCHER,DRS.J. Zoologisch Laboratorium, Rijksuniversiteit te Groningen, Kerklaan 30, Haren(GR), Netherlands. INSTIe'JUT VOOR O•COLOGISCH 0NDERZOEK, Kemperber•erweg 67, Arnhem, Netherlands C JANSEN,E. V. Naeldiryckla•'• 44, 2651 GN Berkel (2-H), Netherlands. J•S•,N.O. Stenstrupsgade 9, 9900 Frederikshaun, Denmark. JOHNSON,A.R. Station Biologique,de la Tour du ValanCeSambuc, 13200 Arles, France. KALAS,J.A. Universitmti Bergen, Zoologisk Museum,Museplass 3, N-5014 Bergen/U, Norway. KEIJ,P.G. Molenstraat 36, 5087 BN Diessen, Netherlands. KERSTS•,M. Verl Nieuwstraat 26A, 9724 4 D Groningen, Netherlands. KISTCHINKSI,DR.A.A. Inst. of Evolutionary Morphology, Leninski Prospekt 33, Moscow B71, U.S.S.R. KOOPMAN,K. Lyts Blijema 17, 9001 L H Grouw, Netherlands. KRAGENOW,P. DDR 206, Waren, Muritz-Museum, East Germany. KUYK•,DR.E. Lab. of Animal Ecology, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium. LATZEL,R. Schwarzer Weg 38, 4402 Greven, West Germany. LIFJELD,J. Zoological Institute, Postbox 1050, Blindern, Oslo 3, Norway. LILJA,I. 28760 Pori 76, Finland. LINDHOI34,C-G. Dept. of Zoology, Box 6801, S-113 86 Stockholm, Sweden. LOFALDL1,L. Universistet i Bergen, Zoologisk Museum, Museplass 3, N-5014 Bergen/U, Norway. MAHEO,DR.R. Station Biologique de Bailleron, S•n•, 56000 Vannes, France. MARTINEZ,A. Sardenya 476 ent 3A, Barcelona-25, Spain. N MEIRE,P. Lab. of Animal Ecology, State Univ. Ghent, K.L. Ledeganckstraat 35, 9000 Gent, Belgium. MELTER,J. AM Urberg 24, 4505 Bad Iburg, West Germany. MELTOFTE,H. Mollegade 23 (3T.V.), DK 2200 Copenhagen N, Denmark. MES,R. Welderingsstrjitte 25, 9035 CX Dronryp, Netherlands. MLODY,B. Hohenstaufenstrasse 2, 4000 Dusseldorf 11, West Germany. MOLL•R,H.S. Ministry of Environment, Fredningsstyrelsen, Amaliegade 13, DK 1256 Copenhagen K, Denmark. MORK,K. N-6060 Hareid, Norway. MULLIE,W.C. Herberdsland 66, 4337 CP Middelburg, Netherlands. 5•3NKEJORD,A. Universistet i Bergen, Zoologisk Museum,Museplass 3, N-5014 Berg.en/U, Norway. N N•DERLANDSINSTIe'JUT VOORONDERZOEK DER ZEE, (Librarian), Postbox 59, Den Burg, Texel, Netherlands. NIERBOER,DRS.E. Vrije Universiteit, Biologische Laboratorium,De Boelelaan 1087, Amsterdam,Netherlands. NOHR,H. Haraldsgade 66, 6700 Esbjerg, Denmark. OREEL,G.J. Postbus 51273, 1007 •G Amsterdam, Netherlands. OSISL•K,E.R. Steffenshein 20, 1251 ZE Laren (NH), Netherlands. OI•I•]•Y BIRD OBSERVATORY PL 1500, S-38065 Degerhamn, Sweden. C PANNACH,H.G. Muhlenstrasse 30, D-3304 Wendeburg, West Germany. PARVIAINEN,H. Peltolan•inkatu 2 I 61, 33840 Tampere 84, Finland. PERD•CK,A.C. Institute for Ecological Research, Kemperber•erweõ 11, Arnhem, Netherlands. C PIERS?t•, Th. Hendrikstraat •1, 9724 NA Groningen, Netherlands. PETERS•N,A. Box 5320, Reykjavik, Iceland. PROKOSCH,P. Wenterbekerweg 26, D-2300 Kiel 1, West Germany. RAPPE,G.A.H. Cootveld 1, B-9131 Beervelde, Belgium. Rf•9qEST,S. Danmarksgade 15, DK-6700 Esbjerg, Denmark. ROALKVAM Zoological Museum, N-5014 Bergen-Univ., Norway. ROSTAD,O.W. Zoological Institute, P.O.Box 1050, Blindern, Oslo 3, Norway. •3FINO,Ro Cempa, Rua de Lapa 73, 1200 Lisboa, Portugal. RYDZS•4SKI,PROF.DR.W. Lab. of Ornithology, Seikiewicza 21, Wroclaw, Poland. SABOT,F. 38 Rue Gambetta, 14•50 Ouistreham, France. S•,R. Vogelwarte Radolfzell, 7761 Schloss Moggingen, West Germany. SCHMIDT,F.U. 3410 Northeim, Wolfshof 8, West Germany. SCHNEIDER,H-D. Box 1346, D-2943 Esens, West Germany. SCHUCKLARD,R. Greate Sudein 6, 8624 TW Uitwellingerga, Netherlands. SCHUT•,R. Rostocker Str 12, D-1000 Berlin 21, West Germany. SE•GER,J.J. 183 Rathedon, FR-Ebert-Ring 105, East Germany. SIEFKE,DR.A. Vogelwarte Hiddensee, DDR-2346, Kloster-Hiddensee, German Democratic Republic. SIRKIA,J. Tou Kolantie 7, 15880 Soramaki, Finland. C SMIT,C. Schilderend 62, 1791 BH Den Burg, Netherlands. SOIKKELI,DR.M. Dept. of Zoology, University of Turku, SF-20500 Turku 50, Finland. SORENS•,B.M. Molleaaparken 21 (ST), DK 2800 Lyngby, Denmark. SPAANS,A. Research Insitute for Nature Management, Ken•pergergerweg 67, Arnhem, Netherlands. SP•KMAN,M. Kuckucksweg 6, D-4530, Ibbenburen, West Germany. STIEFEL,A. Martin-Luther Universitat, Haller-Witenberg, Klinikand Polik. Fur Stomatologle, DDR-402 Halle/s, GR Steinstr 19, East Germany. STRAND,DR.A. Sveriges Ornitologisku Forening, Runebergsgatan 8, 114 29 Stockholm, Swden. STREICHER•,J. 3152 Ilsede 1, Bergweg 6, West Germany. SU•3R,F. 16 Rue Pierre de Coubertin, 80800 Corbie, France. SWEI•4,N.Van Herenstraat 21, 2282 BP Rijswijk ZH, Netherlands. N SWISS WILDLIFE INFORMATION SERVICE Birchstrasse 95, CH-8050 Zurich, Switzerland. N T•SEN,D & TAMIS,W. Corn. Schuytstr. 37, 1071 JE Amsterdam,Netherlands. THOMSEN,J.B. Norgesgade 16, DK-6700 Esbjerg, Denmark. -59-

T I/•4ERMAN, A. Wynserdyk 39, 9062 GP Denkerk, Netherlands. TOMKOVICH,DR. P. Zoological Museum,Moscc• University, Herzena-Str 6, MoscowK-9, U.S.S.R. VADER, DR. W. Tromso Museum, Zooloigisk Aveling, N-9000 Tromso, Norway. VAIS• ,R.A. Departmentof Zoology, University of Helsinki, P. Rautatiekatu 13, SF-00100Helsinki 10, Finland. VALDE,K. 0-14 Stud Byen, 7035 Moholt, Norway. VANDENBULKE, P. 78 Bossytlaan, B-8320 Assebroeu, Belgium. VAN ERDtD•,M. R. Elzenlaan 36, 9741 NE Groningen, Netherlands. VANGOMPE•.,J. J de Troozlaan 53, B-8370 Blankenberge, Belgium. VAIlBERGSORNITOLOGISKA FORENING Box 61, 43201 Varberg, Sweden. HET VOGELJAAR Utreechsweg 43, 1213 TL Hilversun, Netherlands. VUORISTRO,A. Viinikanpuisto 25, 33100 Tampere, Finland. RSDACTIE WATER•DG• Kalmanstraat 21, Alkmaar, Netherlands. ZEGERS,P. Ropta 64, 9202 KK Drachten, Netherlands. ZENTRkLE WASSELVOGELFORS• Der D.D.R.Minœsterium fur LandForest und Nahrungsguterwirtschof, 1157 Berlin, Kopenicker Alle, 39/57 D.D•R. ZW•uRTS,L. Achterwei 23, 9131 LA EE(FRL), Netherlands.

North America (Surface Mail)

ANDERSON,K.S. RFD 2, 22 Winter Street, Middleboro, Mass 02346, USA. BELL,K.M. 1302 Sunnyside Dr., North Vancouver, BC.V7R 1B1, Canada. BOURQUE,R.V. 2440 E. 29th St., Brooklyn, NY. 11235, USA. BUCKLE•, F. G. 372 South St., Carlisle, Mass. 01741, USA. CAIRNS ,W. E. 60 Newland Crescent, Charlottetown, PE1 C1A 4.H7, Canada. CARTAR, R. 2 Leander Court, Toronto, Ontario M4B 2W1, Canada. CHASE III ,C. Denver Museumof Natural History, City Park, Denver, CO 80205, USA. CLARK,A.R. Buffalo Museum of Science, Humbolt Park, Buffalo, NY 14211, USA. COOKE,F. Biology Department, Queen's University, Kingston, Ontario, Canada. CONNORS,P. G. P.O.Box 247, Bodega Bay, CA 94923, USA CYR,MR. & MRS.L.A. 3 Ironclad Road, Scarborough, ME 04074, USA DAU,C. US. Fish and Wildlife Service, P.O.Box 346, Bethel, AK 99559, USA DONAID,M. 7648-172 St., Edmonton, Alberta T5T 0J6, Canada. DOWD,Co 11 Park Street. •4, Brookline, Mass 02146, USA DRURY ,W.H. 10 High Street, Bar Harbor, Maine 04609, USA.

•4ERSON 1144 Bury Street, Taunton, Mass. USA. FAMfYJS,N.C. BOx 428, RFD•I, Machias, Maine 04654, USA. FRY,K. •307-2232 West 5th Avenue, Vancouver BC V6K 1S3, Canada. GRATIt),C. L. Room 406 Graduate Residence, Queen's University, Kingston, Ontario K7L 3N6, Canada. GROVES,S. Zoology Department, University of British Columbia, Vancouver, B.C. V6T 1W5, Canada. HAGAR,J.A. Box 24, Marshfield Hills, Mass 02051, USA. HARRINGTON,B. Mancruet Bird Observatory, Manomet, Mass 02345, USA. HARRIS ,R. 31 Paperbirch Dr., Don Mills, Ontario M3C 2E6, Canada. HILLS, S. Burke Museum, DB-10, University of Washington, Seattle, WA 98195, USA. HOWE,M.A. Migratory Bird & Habitat Res. Lab., Patuxent Wildlife Research Center, Laurel, MD 20811, USA. Jt•{L,J.R.JR. Hubbs Sea World Research Inst., 1700 South Shores PDad, San Diego, CA. 92102, USA. JOHNSON,O. W. Biology Dept., Moorhead State University, Moorhead, Minnesota 56560, USA. KALE,H.W. III. Florida Audubon society, 35 1st Court Sw., Vero Beach, Florida 32960, USA. LANK,D. Biology Dept., University of North Dakota, Grand Forks, NB 58202, USA. LEDDY,M. 116 Cuesta Drive, South San Francisco, CA. 94080, USA. LOVVORN,J. R. Dept. of Forestry & Nat. Res., Forestry Building, Purdue University, West Lafayette, Indiana 47907,USA. MAINGUY, S .K. 4133 Ewell Road, Virginia Beach, VA 23455, USA. MALLORY,E.P. Dept. of Biology, Kenyon College, Gambier, Ohio 43022, USA. MBHRL LIBRARY US Fish & Wildfc•l Service, Patuxent Wildlife Reserve, Laurel, MD. 20811, USA. MINISTRY OF NATURAL RESOURCES District Manager, Box 190, Moosonee, Ontario. P0L 1Y0, Canada. MORRISON,R. I.G. Canadian Wildlife Service, 1725 WoodwardDrive, Ottawa, Ontario, K1G 3Z7, Canada. NOL,E. Zoology Department, University of Guelph, Guelph, Ontario, N1G 2W1, Canada. ORING,L.W. Biology Department, University of North Dakota, Grand Forks, N.D. 58502, USA. PAMPUSH,G.J. Box 239, Umatilla, Oregon 97882, USA. PERRY,MRS .M. G. 104 Shunpike Road, Cromwell, Connecticut 06416, USA. PRESCOIT, R. Cape Cod Museumof Natural History, Brewster, Mass 02631, USA. QU•,M.L. Dept. of Biological Sciences, University of California, Santa Barbara, CA 93106, USA. RICHARDSON,W. J. LGL Limited, 44 Eglington Avenue West, Toronto, Ontario, M4R 1A1, Canada. RUhD•,D. Route 1, Box 257-A, Puxico, MO 63960, USA. •,D.J. R.D.I. Box 147, Basking Ridge, New Jersey 07920, USA. SMITH, K. Bodega Marine Lab., P.O.Box 247, Bodega Bay, CA 94923, USA. STEEVES,J .B. 1720 Bowness Road, NW., Calgary, Alt. T2N 3K2, Canada. STRA•,J.G. Science Applications Inc., 2760-29th Street, Boulder, Colorado 80301, USA. SWARTH,C.W. Box 10, Overlook, Star Route, Bolinas, California 94924, USA. USDI FWS 867101210-LIBN NP Wildlife Reserve Center, P.O.Box 1747, Jammstown, North Dakota 58401, USA. VAUGHAN,MR.&MRS.C.R. 1306 Frederick Avenue, Salisbury, MD21801, USA. WIDRIG,R.S. Box 43, Ocean Park, WA. 98640, USA. WILDS,C. 3331 N Street, NW., Washington, DC 20007, USA.

North America (Airmail)

ALDCROFE,D. •6-1455 West 15th Ave., Vancouver, BC. V6H 1S4, Canada. CADMAN,M. Zoology Department, University of Toronto, Toronto, Ontario, Canada. CANADIAN WILDLIFE SERVICE P.O.Box 340, Delta BC V4K 3Y3, Canada. EDWARDS,K.F. 424 Southwood Drive, Kingston, Ontario K7M 5P6, Canada. HANDEL,C.M. U.S.F.W.S., 1011 E. Tudor Road, Anchorage, AK 99503, USA. HICKLIN,P.W. Canadian Wildlife Service, P.O.Box 1590, Sackville, N.B. E0A 3C0, Canada. HOLOHAN,S. 267 Talbot Avenue, Apt. 17, winnipeg, Man. R2L 0P7, Canada. JONES,S.G. Museumof Vertebrate Zoology, 2593 LSB, University of California, Berkeley, CA. 94720, USA. LEWIS,M.R. & Mrs L. 720 Lombard Avenue, Racine, Wisconsin, 53402, USA. (2 year temporary removal from Britain) -60-

MARTIN,P. Program in Biological Sciences, 202 Bunnell Bldg., University of Alaska, Fairbanks, AK 99701, USA. MARTINEZ,E.F. Box 1333, Great Bend, KS 67530, USA. MCNEIL,R. C.R.E.M., 5858 Cote-des-Neiges, •400, Case Postale 61288, 'A', Montreal,P.Q. H3C 3J7, Canada. MII.LFR,E.H. Vertebrate Zool. D ivn., B.C. Provincial Museum, 675 Belleville Street, Victoria BC V8V 1X4, Canada. MYERS,J.P. Museumof Vert=brate Zoology, 2593 LSB, University of California, Berkeley, CA 94720, USA. QU•LT•,H. Vertebrate Zoology Division, Nat. Museumof Natural Sciences, National Museumsof Canada, Ottawa, Ontario K1A 0M8, Canada. PAGE,G. & STS•ZEL,L. Point Reyes Bird Observatory, 4990 Shoreline Highway, Stinson Beach, CA 94970, USA. R!CKLEFS,R.E. Biology Dept., University of Pennsylvania, Philadelphia, PA 19174, USA. PITELKA,F.A. P.O.Box 9278, Berkeley, CA 94709, USA. ROSS,K. Canadian Wildlife Service, 1725 Woodward Drive, Ottawa, Ontario K1G 3Z7, Canada. SAVARD,J.P. Canadian Wildlife Service, Box 340, Delta, B.C. V4K 3Y3, Canada. WEST,G.C. Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99701, USA. WILDLIFE REVIEW Editorial Office, USFWS,270 Ayksworth Hall, Fort Collins, CO 80523, Colorado State University, USA

Africa

BACKHURST,G.C. P.O.Box 24702, Nairobi, Kenya. COOPER, J. Percy Fitzpatrick Institute, University of Cape Town, Rondebosch, 7700, South Africa. MORANT, P. D. National Unit for Bird Ringing, University of Cape Town, Rondebosch, Cape, South Africa. NATIONAL UNIT FOR BIRD RINGING University of Cape Town, Rondebosch, South Africa. PEARSON,DR. D. Dept. of Medical Biochemistry, University of Kenya, P.O.Box 30197, Nairobi, Kenya. S•,M. 37 Gerald Street, Newton Park, Port Elizabeth 6001, South Africa. THEVSI•OT,M. Station de Baguagedu Maroc,Institut Scientifique (Zoologie), Avenue lbn Batouta, BP703, Rabat Agdal, Morocco. TREE,A. J. 101 Lomagundi Road, Greencroft, P.O. Mabelreign, Salisbury, Zimbabwe. UNDERHILL ,G. D. 12 Roseberry Road, Mowbray, Cape 7700, South Africa. WALTNER,M. 5 Montague Way, Pinelands, Cape Province, South Africa. WILSON,J. c/o J. Burrows and Partners, P.O.Box 380, Gabarone, Botswana, Southern Africa.

Australasia

•kA•, G. 4 Crest Grove, Nunawading 3131, Victoria, Australia. BRASH, K. Kohukoku, Hokianga, New Zealand. DANN,P. Zoology Department, University of Melbourne, Parkville, Victoria 3052, Australia. N DON,G.L. Bioresearches Ltd., P.O.Box 2823, Auckland 1, New Zealand. FIELD ,M. 32 Gibbs Cr., Red Hill, Papakura, Auckland, New Zealand. GESSEL,F.W.C.Van 151172 Brunker Rd., Adamstown, New South Wales 2289, Australia. HAWKINS ,MRS. J.M. 772 Attawhai Drive, Nelson, New Zealand. HEATHER,B .D. 10 Jocelyn Crescent, Silverstream, New Zealand. HENDERSON,D. P.O.Box 29, Legana, Tasmania 7251, Australia. LANE,B.A. 518 Malvern Road, East Prahran, 3181 Victoria, Australia. LANE,J. W.A. Wildlife Research Center, P.O.Box 51, Wannerod, Western Australia 6065, Australia. LANE, S .G. 65 Wood St., Lane Cove, New South Wales 2066, Australia. C LAUDER,C.S. 9 Winnie Street, Greymouth, Westland, New Zealand. N MARTINDALE,J.D. (0rganiser R.A.O.U. Australasian W.S.G.), Royal Australasian Ornithologists Union, 21 Gladstone St., Moonee Ponds, Victoria 3039, Australia. MO}•IS ,F.T. Stanton Road, Smithfield Heights, P.O.Box 158, Smithfield, Queensland 4871, Australia. ORNITHOL. SOC. OF N.Z. LIB., Auckland Inst. and Museum, Private Bag, Auckland, New Zealand. SWINDLEY,R. 25 Ryland Avenue, Croyden, Victoria 3136, Australia.

Rest of the World

HfY•ELL,L. P.O.Box 144, Igeta NSP, Papua New Guinea. HUSSAIN,S.A. Project Scientist, Avifauna Project, BombayNat. Hist. Soc., Hornbill House, Shahid Bhagat, Singh Road, Bombay 400023, India. K•,S.W. Field Ornithology Group of Sri Lanka, P.O.Box 1490, ColomboCampum, Colombo, Sri Lanka. PARFIN, Y. Tel Aviv, 19 Barak Street, Zahal, Israel. SkFRI•L, U.N. Dep. of Zoology, Hebrew University, Jerusalem, Israel. Wm• I •q .D. Zoology Department, University of Kampala, Kuala Lumpur, Malaysia.

Resignations since list in Bulletin 30

Parmelee, D.F. Weaver, D.J. Wiersma, G.